Returns content contained in the specified stored content block or code snippet from Content Builder, including the Image Block type. These functions support email messages only. For text-only parts of the email, such as From Address, From Name, or Subject Line, reference the code snippet block.

ContentBlockbyKey(1, 2, 3, 4, 5)

1stringRequiredExternal key of the content block to return
2stringName of the impression region to start
3booleanDetermines whether the function returns an error when the system cannot locate the specified content area or returns an invalid content area. A value of true returns an error. A value of false does not return an error. Defaults to true.
4stringDefault content to return if an error occurs. Defaults to an empty string.
5numericOutput parameter that returns the status of the call. A value of 0 indicates the function found the content area and successfully rendered the content. A value of -1 indicates either no content or an invalid content area.

The system returns the content of content area myContentBlock.